.treegrid-indent {width:16px; height: 16px; display: inline-block; position: relative;}
.treegrid-expander {width:16px; height: 16px; display: inline-block; position: relative; cursor: pointer; vertical-align: middle; margin-right: 0.25em;}
.treegrid-expander-expanded {background-image: url(../img/collapse.png);}
.treegrid-expander-collapsed {background-image: url(../img/expand.png);}